3. Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s, 100 kPa, 0.95 m / kg specific volume, and leaving at 5 m/s, 700 kPa, and 0.19 m³/kg specific volume. The internal energy of the air leaving is 90KJ/kg greater than that of the air entering. Cooling water in the compressor jackets absorb heat from the air at the rate of 58 kJ/s. Calculate the work. Ans. -122 kJ/s

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3. Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s, 100
kPa, 0.95 m / kg specific volume, and leaving at 5 m/s, 700 kPa, and 0.19 m³/kg specific
volume. The internal energy of the air leaving is 90kJ/kg greater than that of the air
entering. Cooling water in the compressor jackets absorb heat from the air at the rate of
58 kJ/s. Calculate the work. Ans. -122 kJ/s
Transcribed Image Text:3. Air flows steadily at the rate of 0.5 kg/s through an air compressor, entering at 7 m/s, 100 kPa, 0.95 m / kg specific volume, and leaving at 5 m/s, 700 kPa, and 0.19 m³/kg specific volume. The internal energy of the air leaving is 90kJ/kg greater than that of the air entering. Cooling water in the compressor jackets absorb heat from the air at the rate of 58 kJ/s. Calculate the work. Ans. -122 kJ/s
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